Model SRV955 24 X 36 Wall Mount Display Platform
Operating and Service Manual
Part No. MAN955_220721
Page 11 of 16
S
Instruments, Inc.
,
600 Young Street, Tonawanda, NY 14150
Tel: 716-693-5977 Fax: 716-693-5854 URL:
email:
S
Instruments, Inc.
CALIBRATION
NOTE:
Ensure that nothing is in contact with the scale system during this procedure. Remove
hands from the system when noting the displayed calibration results.
CHECKING CALIBRATION
STEP 1:
Select known calibrated weights, traceable to NIST.
NOTE: DO NOT USE
barbells or un-calibrated weights.
STEP 2:
Zero the scale by pressing the
ZERO
button.
STEP 3:
Place the calibrated weight on the scale. Wait for scale to
stabilize; note scale reading.
STEP 4:
Scale readings should be within Calibration
Tolerance Table
SETTING CALIBRATION
NOTE:
Ensure that nothing is in contact with the scale during this procedure and that all six (6)
feet are touching a level surface. Remove hands from the system when noting the displayed
calibration results. (Use known calibrated weight traceable to NIST)
STEP 1:
Enter the System Settings menu and select “Calibrate Scale”.
STEP 2:
Remove all weight from the platform and press “
Done
”.
STEP 3:
Place the calibrated weight on the scale. Wait for scale to stabilize.
STEP 4:
Press the “WEIGHT” field and enter the value of the weight on the platform.
STEP 5:
Press the green checkmark then press the “Save” button.
STEP 6:
Display will automatically go to Home page with displayed weight. Remove weight,
zero scale and then place weight on scale to verify calibration is correct.
CALIBRATION
TOLERANCE TABLE
LOW
LIMIT
APPLIED
LOAD
HIGH
LIMIT
99.8
100.0
100.2
199.6
200.0
200.4
299.4
300.0
300.6
399.2
400.0
400.8
Figure 4: Calibration Table
IMPORTANT
CALIBRATION CHECK Qualified service personnel only should perform this
procedure. Load cells have no user serviceable components and should not be tampered
with for any reason. Re-calibration is generally not required, but should be verified
periodically to ensure accuracy. The recommendation for calibration check is at least
once every 12 months, or as individual maintenance policy requires.
CAUTION
The integrated circuits and semiconductors on
the printed circuit boards may be damaged
by electrostatic discharge (ESD). Be sure to
use proper handling precautions at all times.
